168673

Properties

Appears in sequences

• a(n) is the smallest natural number we cannot obtain from n, n+1, n+2, n+3, n+4, n+5, n+6, n+7, n+8 and the operators +, -, *, /, using each number only once.at n=4A143193
• Number of Dyck paths of semilength n such that all eight consecutive step patterns of length 3 occur at least once.at n=7A243882
• Primes of the form (2*p^2 + 1)/3 where p is a prime > 3.at n=24A362225
• Prime numbersat n=15387